Prototype pollution in js-data
Priority MEDIUM 46CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn function.
Why it matters now
EPSS 0.01983 80th percentileScored 2026-11-07
Fix Fixed js-data (npm): 3.0.10
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | js-data | all versions | — | No fix listed | CNA |
| — | js-data (npm) | before 3.0.10 | 3.0.10 | Patch available | GHSA-mqgv-67vx-g4m5 |
- js-data Vendor— Affected all versions Fixed in — No fix listed CNA
- js-data (npm) Vendor— Affected before 3.0.10 Fixed in 3.0.10 Patch available GHSA-mqgv-67vx-g4m5
Remediation
- Fix · GHSA-mqgv-67vx-g4m5 js-data (npm) Fixed in 3.0.10 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-28442
- 2026-10-03 Alias added: GHSA-mqgv-67vx-g4m5
References
More Js-data vulnerabilities
- TI-2021-06167 Prototype pollution in js-data CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-28442 · CVE Program
- CVE-2020-28442 · NVD
- FIRST EPSS
- GHSA-mqgv-67vx-g4m5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences